21809536

素因数分解:

$2^7\times 7^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 50355360

約数和(自身を除く): 28545824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 241, 404, 448, 482, 707, 808, 896, 964, 1414, 1616, 1687, 1928, 2828, 3232, 3374, 3856, 5656, 6464, 6748, 7712, 11312, 12928, 13496, 15424, 22624, 24341, 26992, 30848, 45248, 48682, 53984, 90496, 97364, 107968, 170387, 194728, 215936, 340774, 389456, 681548, 778912, 1363096, 1557824, 2726192, 3115648, 5452384, 10904768, 21809536]

約数ペア:

[(1, 21809536), (2, 10904768), (4, 5452384), (7, 3115648), (8, 2726192), (14, 1557824), (16, 1363096), (28, 778912), (32, 681548), (56, 389456), (64, 340774), (101, 215936), (112, 194728), (128, 170387), (202, 107968), (224, 97364), (241, 90496), (404, 53984), (448, 48682), (482, 45248), (707, 30848), (808, 26992), (896, 24341), (964, 22624), (1414, 15424), (1616, 13496), (1687, 12928), (1928, 11312), (2828, 7712), (3232, 6748), (3374, 6464), (3856, 5656)]